LG 34GX90SA-WUK manufacturer model · 34GX90SA-W- Refresh rate at native resolution
- 240 HzThis one: 175 Hz
34-inch OLED · UK specification · Samsung part LS34DG850SUXXU
A 34-inch OLED monitor with a 3440 × 1440 panel and a listed 175 Hz native-resolution mode. Its specified depth with stand is 192.8 mm.

Specifications checked 10 Sept 2026Manufacturer specifications, not a hands-on test.
The 3440 × 1440 panel supports a listed 175 Hz native-resolution mode. Check the input-specific conditions alongside the figures.
The supplied stand has a listed 120 mm height adjustment, allowing its position to change without adding a separate mount.
Response time, HDR support and colour figures are manufacturer claims with different conditions; they do not establish independent motion or image-quality results.
Allow for the 192.8 mm listed depth with the supplied stand, plus cable clearance. Check desk depth before choosing this size.
Exact configuration: LS34DG850SUXXU · 34-inch OLED · Samsung UK specification
47 specifications in 10 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”. 1 row repeats a listed fact in the manufacturer’s own wording, kept under “Manufacturer wording”.
Manufacturer screen-size class, which can be rounded compared with the active panel diagonal.
SourceManufacturer resolution notation: UWQHD (3,440 x 1,440). See the separate refresh-mode conditions for any lower-resolution configurations.
SourceManufacturer panel designation; technology alone does not establish tested image quality.
SourceManufacturer-listed configuration: Max 175Hz. The comparison uses the native-resolution mode; any higher rate at a lower resolution remains a separate mode. Source, input and cable limits still apply.
SourceManufacturer response-time claim; settings and transition method matter. GtG and MPRT values are different measures and are not independent motion-clarity results.
SourceThe same facts in the manufacturer’s combined or original wording, each with its source.
Manufacturer-listed configuration: Max 175Hz. The comparison uses the native-resolution mode; any higher rate at a lower resolution remains a separate mode. Source, input and cable limits still apply.
SourceManufacturer typical brightness. Not an independent measurement; calibration, mode and content affect output.
SourceManufacturer colour specification under its stated colour space and measurement basis. Coverage and gamut volume are not interchangeable, and this is not an independent colour-accuracy measurement.
SourceManufacturer-listed HDR formats or certification. This alone does not establish real-scene HDR quality, local dimming or measured peak brightness.
SourceManufacturer-listed HDR formats or certification. This alone does not establish real-scene HDR quality, local dimming or measured peak brightness.
SourceManufacturer colour specification under its stated colour space and measurement basis. Coverage and gamut volume are not interchangeable, and this is not an independent colour-accuracy measurement.
SourceThe inspected manufacturer interface table explicitly lists no USB-C connection.
SourceManufacturer port counts and versions. Confirm source-device support, cable bandwidth and the exact mode; a connector name alone does not guarantee every advertised configuration.
SourceNo positive charging-output rating is established in the inspected specification.
SourceSoftware, regional availability and any service subscriptions are separate requirements; an app listing does not establish free content access.
SourceThe manufacturer explicitly lists positive stand height travel. Manufacturer-listed travel: 120.0 ±5.0. Not calculated from the external height range.
SourceMatch the screw pattern, screw dimensions, product weight and mount load rating; the pattern alone does not verify a safe mount.
SourceThe listed small-angle pivot range does not establish portrait rotation. · The manufacturer-listed stand pivot range is preserved separately.
SourceManufacturer-listed travel: 120.0 ±5.0. Not calculated from the external height range.
SourceManufacturer dimensions in the stated orientation; allow additional room for cables and movement. A listed height range is retained without inferring an adjustment travel.
SourceDepth from the manufacturer dimension tuple. Allow additional room for cable routing and movement.
SourceManufacturer width in the listed landscape configuration.
SourceNet product weight with the supplied stand or arm; packaging excluded.
SourceManufacturer dimensions in the stated orientation; allow additional room for cables and movement. A listed height range is retained without inferring an adjustment travel.
SourceManufacturer power figure under the stated operating mode; real use, brightness, connected USB devices and charging load can differ. Source mode: typical.
SourceManufacturer power figure under the stated operating mode; real use, brightness, connected USB devices and charging load can differ.
SourceManufacturer power figure under the stated operating mode; real use, brightness, connected USB devices and charging load can differ.
SourceCheck the exact model, purchase market, proof-of-purchase requirements and full manufacturer terms; this is not a cross-border warranty guarantee.
SourceUK and US retailer searches are provided separately. A UK specification does not prove identical US variants, included plugs, stock or cross-border warranty.
SourceMore of the nearest checked monitors by key specifications, for a side-by-side comparison.
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